The confidence shows Franklin Chang-Diaz, a physicist at MIT and former astronaut who flew 60 years seven times aboard a space shuttle, currently shared by NASA, the U.S. space agency.
In announcing in late January in its draft 2010 budget that leaves the Constellation program-Americans back to the moon by 2010, as a prelude to the conquest of Mars, “President Barack Obama stressed that NASA devote more resources to developing new technologies, such as motor VASIMR, in cooperation with the private sector for exploration of the future inhabited.
“This is an interesting change for NASA, I would have to be 10 or 20 years ago, “says Franklin Chang-Diaz, of Costa Rican origin, noting that the project was started VASIMR (Variable Specific Impulse Rocket Magnetoplasma) in the mid-2000s, the space agency provided him minimal support. “NASA had never really thought about a system of non-chemical rocket propulsion and planned to send astronauts to Mars with chemical engines, which for me is not possible” estimated. scientist estimated that with this system the total journey would be nearly three years, with a required 18-month stay on Mars, waiting for the opening of the window for the return shot. Earth-Mars distance varies between 55 and 400 million km as a series of one and a half.
With VASIMR can go to Mars and back in the same cycle, a period of five to six months in total, predicted Franklin Chang-Diaz, thus avoiding exposing too much time astronauts from cosmic radiation dangerous.
Unlike the rocket engines that burn powder or liquid fuel mixtures to quickly reach high speeds, VASIMR uses a power source-solar or nuclear-reactor to ionize hydrogen, helium or deuterium plasma heated processed at very high temperatures (11 million degrees Celsius). Continue reading →